.container {
  position: fixed;
  top: 0;
  width: 100%;
  height: 3px;
  z-index: 200;
}

.inner {
  position: absolute;
  top: 0;
  left: -10px;
  height: 100%;
  width: 100%;
  background-color: red;
  transform-origin: left center;
  box-shadow: 0px -3px 10px 5px rgba(255, 0, 0, 0.6);
}
